Transcript
A-Series All-Environment Loudspeaker Models A6, A6T Features*
Description
• Indoor and outdoor all-weather speaker with fully-sealed cabinet • Available versions: 8-ohm and 70V • Available colors: black, green, and white • Metal-alloy MDT™ mid/bass speaker cone delivers natural sound with ultra-low distortion • Extremely stable, long-lasting MDT cone structure • High-efficiency and power handling for optimum performance • Dual-layer voice coil with separate inner and outer windings for high output with ultra-low distortion • Patented MLS™ fluid voice coil suspension replaces distortion-causing mechanical spider • Compound rubber surrounds resist UV rays and salt spray • Gold-plated, rust proof connectors • High-density, injection-molded cabinet resists chipping and scratching • Low-resonance cabinet structure • Easy-to-grasp multi-faceted mounting brackets with 180o swivel • Easy to grip, oversized mounting knobs • Brackets mount with knobs attached for easier and safer installation in hard-to-reach locations • Heavy-gauge aluminum (A2 & A6 models) or stainless steel (A8 models) brackets • Color-matched/powder-coated mounting brackets • Corrosion-resistant driver frame & mounting hardware • Attractive styling with “Armadillo” ridges for stiffness • Coaxial (A2 models) or 2-way speaker systems (A6 & A8 models)
NEAR A-Series Armadillo® loudspeakers feature NEAR’s unique technologies that improve sound quality and operating reliability. Attractively styled, they are engineered for both indoor and outdoor applications. The A6 models are conveniently sized, 2-way designs with high-power handling for applications such as restaurants, health clubs, and patio and pool areas. The compact A2 models are designed for smaller spaces.Their high audio intelligibility and superb articulation make them ideal for music or paging applications.The A8 models are high-output, 2-way designs for larger spaces such as clubs, auditoriums, and theme parks. All models feature NEAR’s MDT (Metal Diaphragm Technology) and MLS (Magnetic Liquid Suspension).
* A2 and A8 models described in more detail on separate specification sheets. Additional information at www.nearspeakers.com
Unique MDT™ (Metal Diaphragm Technology): • High rigidity and low mass of metal versus traditional papers and plastics • Extremely stable cone structure over long periods of time • Fast transmission of sound through the diaphragm means low energy storage • Special anodizing process creates a ceramic coating for increased stiffness • Efficient heat-sinking of voice coils under long-term, high-power situations Patented MLS™ (Magnetic Liquid Suspension): • Voice coil is constantly centered for lower distortion • Voice coil is more efficiently heat-sinked by fluid instead of air • Greater linearity is accomplished because the mechanical spider is eliminated • Constant lubrication of the gap prevents oxidation from outdoor use
Specifications subject to change without notice. © 2000 Bogen Communications, Inc. Part No. 54-8009-01R2 Printed in U.S.A. 0210
MODEL NUMBER
A6
Technical Frequency Response (-10 dB)* Specifications
A6T 50 Hz to 20 kHz
LF Driver
6" MDT Metal-Alloy Cone
HF Driver
1" Titanium 89 dBspl
Sensitivity (1M/1W, 8-ohm) Impedance
8-ohm
70V
Power Handling
150W
32W
Additional Taps
-
16W, 8W
Product Weight
11 lb.
12 lb.
Cabinet Material
Mineral-Filled Polypropylene, UV-inhibitied
Speaker Dimensions
7-1/8" W x 13-7/16" H x 7-11/16" D
Terminations
Gold-Plated, Rust Proof Barrier Strip
Environmental
Meets or exceeds Mil-Std-810E
Included Accessories
Color-Matched Aluminum Mounting Bracket
Cabinet Color
Black, Green,White
Architect & Engineer Specifications* The loudspeaker shall be a NEAR Model A6 (8-ohm) or Model A6T (70V) in Black (BLK), White (WHT), or Green (GRN), or approved equivalent, loudspeaker consisting of one 6-inch nominal low frequency transducer, one 1-inch nominal titanium high frequency transducer with a filter network for dividing frequencies between the transducers. A weather-tight enclosure shall house all components. The enclosure shall be constructed from an injection-molded, high density (30% or greater) mineral-filled polypropylene material compounded with UV inhibitors. Three molded-in colors shall be made available (Black, White, and Green). Perforated speaker grilles shall be made from heavy-gauge PVC, color-matched to the enclosure. The low frequency driver shall utilize a metal-alloy cone with deep-anodized surface treatment for rigidity and corrosion resistance.The cone shall provide a heat transfer element for the voice coil under high-power input. Compounded rubber cone surrounds shall be formulated to withstand all-environment installations, including salt spray, ultraviolet light (UV), heat, cold, and constant humidity. The voice coil will be centered via a high gauss, low viscosity magnetic fluid (ferrofluid), which increases the heat transfer rate from the voice coil under long-term high-power use. The magnetic fluid shall prevent corrosion from occurring in the magnet gap.
The high frequency driver shall utilize an environmentally stable titanium diaphragm. Ferrofluid shall dampen the voice coil and assist in the heat transfer for higher power capability. Environmental testing shall ensure long-term operation in any weather. Specifications shall exceed Mil-Std-810E Test Methods for Temperature, Humidity, Ultra-Violet Light, and Salt Spray. The mounting bracket shall be designed with multiple angles to facilitate installation in corners or when angulation is required. An integral safety strap mounting point shall be included. The loudspeaker shall rotate, on its axis, a minimum of 180o.The bracket shall be formed from heavy-gauge aluminum (minimum 3mm thick), and finished with a scratch-resistant paint (color-matched to the enclosure). The input connectors for 8-ohm and 70-volt systems shall be gold-plated screws with integral clamping washers. Dimensions of each speaker shall not exceed 7-1/8" W x 13-7/16" H x 7-11/16" D. Weight shall not exceed 10 lb. (A6) and 12 lb. (A6T).The system shall be the NEAR Model A6 (8-ohm) or Model A6T (70V) in Black (BLK), White (WHT) or Green (GRN).
* Specifications available on CD and on Bogen’s web site for easy downloading.
(dBspl)
110
Frequency Response (Half-space @ 1M/1W, 8-ohm)
105 100 95 90
32W 16W 8W 1W/8-ohm
85 80 75
50
100
1000
10000 (Hz)
(dB) +10
Horizontal Off-Axis Response
0
40 30 20 10 0
Speaker Orientation
deg deg deg deg deg
-10
-20
Vertical Off-Axis Response (Up)
50
100
1000
10000 (Hz)
(dB) +10
0
40 30 20 10 0
Speaker Orientation
deg deg deg deg deg
up up up up up
Vertical Off-Axis Response (Down)
-10
-20
50
100
1000
10000 (Hz)
100
1000
10000 (Hz)
(dB) +10
0
Speaker Orientation
40 30 20 10 0
deg deg deg deg deg
down down down down down
-10
-20
50
Polar Response
0
330
0 30
330
-6
300
-12
-12
-18
-18
300
60
-24
-30
-36
-36
90
240
150 180
90
270
120
210
60
-24
-30
270
500 Hz 1 kHz 2 kHz
30 -6
240
4 kHz 8 kHz 16 kHz
120
210
Mechanical Drawings
50 Spring Street, Ramsey, NJ 07446, USA Tel: 201-934-8500 • Fax: 201-934-9832 www.bogen.com
150 180
